高考第一轮复习主要是夯实基础,抓好双基,科学构建化学学科知识结构。如果说第一轮复习是“平面”结构的话,第二轮复习则是“立体”结构。第二轮复习着重于学生能力的培养,着力于提高化学学科综合素质。习题讲评是高三复习阶段中常见的课型,是高考第二轮复习的一个重要环节。习题讲评往往是针对学生学习中存在的盲点和知识点不到位,概念模糊,审题不清等问题,通过对错题的分析、诊断及师生间的互动,建立知识网络。“讲”就是要讲透例题所涉及到的知识,及审题的方法。“评”就要评在考纲、考点、考题上,针对学生习题中出现的错误,进行归纳性讲解,包括题型、方法的归 The first round of college entrance examination review is mainly to lay a solid foundation, do a good job in science, construction of chemical science knowledge structure. If you say the first round of review is “flat ” structure, the second round of review is “three-dimensional ” structure. The second round of review focuses on the cultivation of students’ abilities and focuses on improving the overall quality of chemistry. Exercises comment is a common high school review stage class, is an important part of the second round of college entrance examination review. Exercises are often targeted at student learning problems such as blind spots and knowledge are not in place, the concept of ambiguity, unclear exam questions, through the analysis of the wrong questions, diagnosis and teacher-student interaction, the establishment of knowledge networks. “Lectures ” is to talk about the knowledge involved in the examples, and the method of examining questions. “Evaluation ” should be assessed in the test syllabus, test sites, test questions, for student errors in the exercises, inductive to explain, including the questions, methods of return